dang. the dual-socket AMD Turin "Volcano" platform has half a gigabyte of L3 cache.
I honestly thought I wasn’t surprised by these sorts of things anymore, but that’s a “whoa” moment right there.
@gsuberland I’m sorry HOW MUCH CACHE? And I thought Intel was bad for just strapping more cache on the side to make it go faster. Must be a LOT of terrible performance they’re lying about under it.
there's as much cache in that server as there was RAM in my first gaming rig.
@gsuberland You don't need to go double socket. The 16 cores single socket 9175F has 512MB of L3
@gsuberland I think that's the size of the spinny hard drive on the first main host (mail, news, web, DNS was on a slightly slower 386/25) that we used for the ISP I was part of starting way back when.
@gsuberland I’ve owned computers was less hard disk space than that.
@gsuberland lol that's larger than the hard drive on my first two PCs. My first "gaming" PC (on which I learned Quake) had 48MB of RAM and it (PPro 200) was an absolute monster for a uni student in early 1997.
Also it'd be interesting to know the relative latency (in CPU cycle count) to snort a line from that L3 vs reading from primary DRAM on your first gaming PC.
Edited 72d ago
@jpm it's got 192 cores per CPU, so it's not quite as insane as it sounds
@gsuberland oh that’s ok then, ~2.5MB per core. With that many cores, it must be starved for I/O, so probably targeting CPU+memory constrained workloads